Find the class mark of class interval 20-50. a) 20 b) 50 c) 25 d) 35� – InterviewSolution

1.

Find the class mark of class interval 20-50. a) 20 b) 50 c) 25 d) 35

Answer»

CLASS mark = upper limit + lower limit ÷ 2

therefore, class mark = 50 + 20 ÷ 2

= 70 ÷ 2 = 35

d) 35 is the class mark

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